QMediaAvailabilityControl Class

The QMediaAvailabilityControl class supplies a control for reporting availability of a service. More...

Header: #include <QMediaAvailabilityControl>
qmake: QT += multimedia
Inherits: QMediaControl

Public Functions

virtual ~QMediaAvailabilityControl()
virtual QMultimedia::AvailabilityStatus availability() const = 0
  • 30 public functions inherited from QObject

Signals

void availabilityChanged(QMultimedia::AvailabilityStatus availability)

Protected Functions

QMediaAvailabilityControl(QObject *parent = nullptr)
  • 9 protected functions inherited from QObject
typedef QObjectList
QList<T> qFindChildren(const QObject *obj, const QRegExp &regExp)
T qobject_cast(QObject *object)
T qobject_cast(const QObject *object)

Macros

Additional Inherited Members

  • 1 property inherited from QObject
  • 1 public slot inherited from QObject
  • 9 static public members inherited from QObject

Detailed Description

An instance of QMediaObject (or its derived classes) can report any changes in availability via this control.

The interface name of QMediaAvailabilityControl is org.qt-project.qt.mediaavailabilitycontrol/5.0 as defined in QMediaAvailabilityControl_iid.

See also QMediaService::requestControl() and QMediaObject.

Member Function Documentation

[protected] QMediaAvailabilityControl::QMediaAvailabilityControl(QObject *parent = nullptr)

Constructs an availability control object with parent.

[signal] void QMediaAvailabilityControl::availabilityChanged(QMultimedia::AvailabilityStatus availability)

Signal emitted when the current availability value changed.

[virtual] QMediaAvailabilityControl::~QMediaAvailabilityControl()

Destruct the availability control object.

[pure virtual] QMultimedia::AvailabilityStatus QMediaAvailabilityControl::availability() const

Returns the current availability of this instance of the media service. If the availability changes at run time (for example, some other media client takes all media resources) the availabilityChanges() signal should be emitted.

Macro Documentation

QMediaAvailabilityControl::QMediaAvailabilityControl_iid

org.qt-project.qt.mediaavailabilitycontrol/5.0

Defines the interface name of the QMediaAvailabilityControl class.